物理学报2012，Vol.61Issue(5)：160-165,6.
氧化孔形状对光子晶体垂直腔面发射激光器模式的影响
Study on influence of oxide aperture shape on modal characteristics of VCSELs
摘要
Abstract
The effects of oxide aperture shape whose size is small, on the mode characteristics of external cavity oxide-confined photonic crystal vertical cavity surface emitting laser （VCSEL） is studied extensively based on the finite-difference time-domain algorithm. A new three-dimensional model of optical field in photonic crystal VCSEL is built and the influence of the variation in aperture shape on the characteristics of far-field and spectrum is pointed out. It is found that the modal characteristics of PhC-VCSEL are influenced by the shape of oxide aperture, the influence on spectrum feature is more apparent. It can be explained from the distribution of modal field by the fact that the symmetrical characteristic of prismatic oxide aperture is not identical to that of high-order mode. But the influence is less apparent while the depth of photonic crystal hole is deeper. The reason for this matter is illustrated. The results can be used to guide the fabrication of external cavity oxide-confined photonic crystal VCSELs.关键词
光子晶体/垂直腔面发射激光器/氧化孔/时域有限差分Key words
photonic crystal/vertical cavity surface emitting lasers/oxide aperture/finite difference time domain分类
信息技术与安全科学引用本文复制引用
刘发,徐晨,赵振波,周康,解意洋,毛明明,魏思民,曹田,沈光地..氧化孔形状对光子晶体垂直腔面发射激光器模式的影响[J].物理学报,2012,61(5):160-165,6.基金项目
国家高技术研究发展计划（863计划）（批准号：2008AA032402）、北京市自然科学基金（批准号：4092007）和国家自然科学基金（批准号：61076044）资助的课题. （）
